[Samba] Using postscreen_dnsbl_reply_map

L.P.H. van Belle belle at bazuin.nl
Thu Oct 22 06:46:21 UTC 2015


Hai Alex, 

I use the same as in the link you posted. 
http://rob0.nodns4.us/postscreen.html 
This is used for my bases setup also. 

Just put all your servers (rbls) in here and copy the response lines, Like : 
/^zen\.spamhaus\.org$/		blocked by rbl, see http://multirbl.valli.org
/^bl\.spameatingmonkey\.net$/ blocked by rbl, see http://multirbl.valli.org
/^b\.barracudacentral\.org$/ blocked by rbl, see http://multirbl.valli.org

And you see 
postfix/postscreen[24336]: NOQUEUE: reject: RCPT from [199.182.172.6]:59429: 550 5.7.1 Service unavailable; client [199.182.172.6] blocked by rbl, see http://multirbl.valli.org;

and as tip, take fail2ban and let it monitor for "blocked by rbl" 
and you reduces your dns queries also a lot. 

Greetz, 

Louis



> -----Oorspronkelijk bericht-----
> Van: mysqlstudent at gmail.com [mailto:owner-postfix-users at postfix.org]
> Namens Alex
> Verzonden: donderdag 22 oktober 2015 1:26
> Aan: postfix users list
> Onderwerp: Re: Using postscreen_dnsbl_reply_map
> 
> Hi,
> 
> On Wed, Oct 21, 2015 at 10:38 AM, L.P.H. van Belle <belle at bazuin.nl>
> wrote:
> > I just point everything to http://multirbl.valli.org so they can see if
> they are listed on multiple rbl servers.
> 
> That's a great idea. How did you configure your system to do that?
> 
> > And imo thats better, then, mailing, getting rejected, by for example
> spamhaus.  Going to that site, checking,
> > removing. Mailing again, and now again blocked, other rbl server etc.
> 
> Absolutely.
> 
> Thanks,
> Alex





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